Steering Wheel Switch - Message Center
The RH steering wheel switch is comprised of 5 buttons and controls the message center displays. The switch is hardwired to the SCCM. The SCCM sends steering wheel message center switch data messages to the GWM over the HS-CAN2 for each of the button presses (up, down, left, right and OK). The GWM sends the steering wheel message center switch data messages to the IPC over the HS-CAN3.